使用maven为eclipse设置项目

Question

我正在尝试使用Eclipse开始修改现有应用程序.实际上我之前有它工作,但我删除了项目,现在用"mvn eclipse:eclipse"我得到以下内容:

[INFO] Resource directory's path matches an existing source directory. Resources will be merged with the source directory src/main/resources
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Request to merge when 'filtering' is not identical. Original=resource src/main/resources: output=target/classes, include=[atlassian-plugin.xml], exclude=[**/*.java], test=false, filtering=true,
 merging with=resource src/main/resources: output=target/classes, include=[], exclude=[atlassian-plugin.xml|**/*.java], test=false, filtering=false
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Request to merge when 'filtering' is not identical. Original=resource src/main/resources: output=target/classes, include=[atlassian-plugin.xml],
 exclude=[**/*.java], test=false, filtering=true, merging with=resource src/main/resources: output=target/classes, include=[], exclude=[atlassian-plugin.xml|**/*.java], test=false, filtering=false
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:583)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:512)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:482)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.MojoExecutionException: Request to merge when 'filtering' is not identical. Original=resource src/main/resources: output=target/classes, include=[atlassian-plugin.xm
l], exclude=[**/*.java], test=false, filtering=true, merging with=resource src/main/resources: output=target/classes, include=[], exclude=[atlassian-plugin.xml|**/*.java], test=false, filtering=false
        at org.apache.maven.plugin.eclipse.EclipseSourceDir.merge(EclipseSourceDir.java:302)
        at org.apache.maven.plugin.eclipse.EclipsePlugin.extractResourceDirs(EclipsePlugin.java:1605)
        at org.apache.maven.plugin.eclipse.EclipsePlugin.buildDirectoryList(EclipsePlugin.java:1490)
        at org.apache.maven.plugin.eclipse.EclipsePlugin.createEclipseWriterConfig(EclipsePlugin.java:1180)
        at org.apache.maven.plugin.eclipse.EclipsePlugin.writeConfiguration(EclipsePlugin.java:1043)
        at org.apache.maven.plugin.ide.AbstractIdeSupportMojo.execute(AbstractIdeSupportMojo.java:511)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:451)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558)
        ... 16 more

Answer 1

这会让它变得更好吗？

 mvn org.apache.maven.plugins:maven-eclipse-plugin:2.6:eclipse

这告诉maven使用版本2.6(仍然有效)而不是默认的2.7(不支持).
你必须每次发出这样的命令,所以它有点不方便,而上面的文件更改应该导致一次性修复,但这样你不会冒险意外破坏别的东西,你没有去寻找文件.
如果您忘记了命令语法,请将其复制到文本文件中以便于参考.

看到这个帖子.

它确实提到了Maven Eclipse插件的最新变化:

• MECLIPSE-551回归 - 如果资源目录等于源目录,则排除资源
• MECLIPSE-551 Jira票

Answer 2

我认为VonC的答案是正确的(+1),如果你正在使用eclipse:eclipse目标.我个人认为它比它的价值更麻烦,而是使用m2eclipse来管理依赖项,将eclipse元数据文件提交给SCM.

为了避免必须使用VonC建议的完全限定名称来调用eclipse:eclipse,您可以在pom中配置插件以使用确切的版本.无论如何,这是一个好习惯.

在pom中,指定插件如下:

<build>
...
  <plugins>
  ...
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-eclipse-plugin</artifactId>
      <version>2.6</version>
    </plugin>
  </plugins>
</build>

然后每当你调用eclipse插件时,都会使用2.6版本.